即使供不应求，一辆普通自行车的价格再涨，也不会比一辆汽车的价钱高；即使供过于求，

进入底坑检修工作时应()。

A、二人配合，按下底坑急停开关

B、带上安全帽，按下急停开关

C、两人配合带上安全帽，按下底坑急停开关，不要站立在对重位置

D、不准站立

下列选项中，不属于个人住房贷款的法律和政策风险点的是()。

A.借款人主体资格风险

B.合同有效性风险

C.借款人还款能力风险

D.诉讼时效风险

患者，男性，49岁，自觉口咽部溃烂50天。口腔检查左侧舌腭弓中部见一直径约1.0cm×0.8cm大小溃疡，溃疡呈弹坑状，边缘不整齐，基底略硬，有灰白色假膜覆盖，用棉签擦去假膜有轻微触痛，可见基底有颗粒状肉芽，溃疡边缘微隆，呈鼠啮状。该患者两侧磨牙排列咬合良好，无修复体。

为明确诊断还需进行（）

A.活体组织检查

B.渗出物涂片

C.血常规检查

D.结核菌素试验

E.过敏原检测

Microsoft’s COM is a software architecture that allows applications to be built from binary software components. COM is the underlying (48) that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components, a way for components to dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.

OLE is a compound (49) standard developed by Microsoft. OLE makes it possible to create (50) with one application and link or embed them in a second application. Embedded objects retain their original format and (51) to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A (52) compound document standard developed mainly by Apple and IBM is called OpenDoc.

51（）

A.characteristics 

B.address 

C.links 

D.page

带式输送机运行时出现噪音时应将停机检查，检查重点是（）。

A、电动机、减速器、液力偶合器

B、电动机、减速器、液力偶合器、滚筒、托辊等

C、滚筒、托辊

D、电动机、减速器